CN1516708A - Monofilament of polyamide, flat textile product and method for producing same - Google Patents

Monofilament of polyamide, flat textile product and method for producing same Download PDF

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Publication number
CN1516708A
CN1516708A CNA028121791A CN02812179A CN1516708A CN 1516708 A CN1516708 A CN 1516708A CN A028121791 A CNA028121791 A CN A028121791A CN 02812179 A CN02812179 A CN 02812179A CN 1516708 A CN1516708 A CN 1516708A
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CN
China
Prior art keywords
monofilament
polymeric amide
crosslinked
reinforcer
irradiation
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Granted
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CNA028121791A
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Chinese (zh)
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CN1285619C (en
Inventor
��˹-�˵á���������
汉斯－彼得·布罗伊尔
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Albany International Corp
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Albany International Corp
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Publication of CN1516708A publication Critical patent/CN1516708A/en
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Publication of CN1285619C publication Critical patent/CN1285619C/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/021—Moisture-responsive characteristics hydrophobic

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Woven Fabrics (AREA)
  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention related to a monofilament of polyamide, especially for flat textile products, for use in paper machines, for instance, as well as a flat textile product and a method for producing same.

Description

Polyamide monofilament, common textiles and production method thereof
The present invention relates to polyamide monofilament,, for example be used for paper making equipment, common textiles, its production method and produce the purposes of common textiles method especially for common textiles.
In other purposes, so common textiles is as the coverture of paper making equipment press felt for example.Press felt contacts through roller with still moist paper web or Mierocrystalline cellulose paper web, and right by a series of rollers, removes from the paper web of humidity in this process and anhydrates.Press felt not only is used as the carrier surface of moist paper web, and absorbs the water that extrudes from paper web.Cumulative water can be removed by dehydration equipment in the banded press felt of transmission, described dehydration equipment be positioned at for example so a bit, wherein paper web no longer directly contacts with press felt.
After the mechanical dehydration part, paper web is transferred to drying nest, wherein mainly is through thermal treatment, therefore is further dehydrated or drying.
At drying nest, have strong stable on heating monofilament, the PETP of PPS, PCTA and stabilization for example is mainly used in the coverture of paper making equipment.
On the other hand, at the pressures partially of paper making equipment, mainly emphasize to be used for the physical strength of obducent monofilament.Therefore in this part, can use polymeric amide for example PA-66, PA6.6, PA6.10 and PA6.12, because they have good intensity, particularly under continuous, lasting mechanics strain.
Obducent shortcoming like this is such fact, and promptly the polymeric amide of Shi Yonging is the height moisture absorption, means that they have high water adsorption capacity.The diffusion of water causes like this that mainly by the amorphous domain of partial crystallization polymeric amide silk thread expands.Such expansion is known as the dimensional stability of the shortcoming of hygral expansion particularly in the finished product.
And except hygral expansion, the absorption of water causes that also polymeric amide is aging more quickly.Their mechanical characteristics variation in time in this process, because the penetration by water amorphous domain enters crystal region, all the other are contained between the molecular chain.As a result, intermolecular distance is broadened, and the hydrogen bridge band that influences mechanical property is weakened.Therefore, monofilament PA6, PA6.6, PA6.10 or PA6.12 become fragile, and are easy to fracture in time in whole process.
And patent EP 0784107 A2 discloses the method for producing monofilament, and it contains, and except that polymeric amide, also contains the proportional maleic anhydride modified polyethylene/polypropylene rubber of 1wt%～30wt% that is, and ratio is up to the anti-aging stablizer of 3wt%.Be considered to like this to improve resistance to abrasion, and make the common textiles of industrial application have stability.
By such method, can make polymeric amide have hydrophobicity.And because the characteristic of the mutual opposition of the polymeric amide that uses, it is very difficult and expensive to produce such polymeric amide.
Crosslinked polyamide-block polymkeric substance is well known in patent US-A 5,998,551 and JP-A 8,112 052.Paper making equipment fabric by the polyethylene manufacturing is well known in US-A 4,421,819.The method of producing very firm polyethylene fibre is well known in US-A 4,778,663.
The objective of the invention is to propose a kind of polyamide monofilament, it is characterized in that improved mechanical property, particularly abrasion, intensity and be easy to the breaking property aspect, but also relate to over time at whole process performance.Another object of the present invention is to propose a kind of common textiles, and particularly leader silk or press felt for example are used for cellulosic fibre manufacturing or paper production, and produces the method for so common textiles.
Under the present invention, such purpose is by realizing that at the monofilament that begins to mention type it comprises that ratio is the polymeric amide of 99.9wt%～90wt% and the crosslinked bonding reinforcer that ratio is 0.1wt%～10wt%, and polymeric amide is partial cross-linked at least.Polymeric amide is the one-tenth silk polymeric amide that melting can spin.
Such monofilament has such advantage, promptly because cross-link bond makes molecular chain be bonded to each other tightr firmlyer, and it causes the formation of covalent linkage, prevents that therefore water molecules sees through amorphous domain between the molecular chain.Therefore, hydrogen bridge band is no longer by broadening or loosening.
Therefore greatly reduced the aging effect that the absorption by water causes, made the mechanical property variation.At last, also improved the mechanical property of monofilament.Therefore, the specific monofilament of the present invention shows that for example abrasion still less reach the lower breaking property that is easy to.
Particularly, monofilament cross-link bond provided by the invention is not restricted to its borderline region, but extends across the cross section of whole monofilament.In this, for example, nuclear/skin effect that the chemically crosslinked bonding causes if the type does not observe, this is favourable.
Particularly, monofilament provided by the invention contains the proportional crosslinked bonding reinforcer of 0.5wt%～5wt% that is, special preferred proportion is the crosslinked bonding reinforcer of 1wt%～3wt%.As reinforcer, for example can use TAIC (triallyl isocyanurate) or TAC.TAIC can the title with " Beta Link Master " obtain from many major companies on market, PlasticTechnology Service Marketing-und Vertriebs GmbH is wherein arranged, Adelshofen.
Particularly, only the invention provides the cross-link bond that forms part, because cross-link bond returns and causes that silk thread becomes fragile completely.
As polymeric amide, can use the mixture of PA6 or PA6.6 or two kinds.But, also can use other polymeric amide or contain the mixture of other polymeric amide, or the mixture of making by other polymeric amide.
The present invention also relates to common textiles, particularly leader silk or press felt are used for the manufacturing of cellulosic fibre or the production of paper, for example wherein at least warp form by monofilament with above-mentioned performance.At the warp that in putting the woven felt that not cut off in order, laterally moves, especially influence the dimensional stability of fabric.
At last, the present invention also relates to the production method that a kind of production contains the common textiles of above-mentioned character monofilament, extruded monofilament wherein, with back draft and weave, monofilament is mixed with crosslinked bonding reinforcer before extruding, and before weaving process and/or use the electronics x ray irradiation x afterwards, by such method, polymeric amide partly is crosslinked.
Compare with chemically crosslinked, use the crosslinked of electron irradiation realization can have such advantage, promptly produce nuclear/bark effect, promptly monofilament is crosslinked crossing their entire cross section, and not only at its borderline region (skin).Electron irradiation penetrates whole monofilament, in the nuclear zone crosslinked bonding takes place also like this.
Also can the whole fabric of irradiation, so fabric does as a wholely, or only is the part of fabric, the specific effect of realization in the fabric is selected to be used in back one.
Under the situation of embodiment, under 0.1～100kGy, carry out irradiation, particularly under 10～60kGy, particularly under 15～30kGy.
The other embodiment of the present invention is disclosed in other the application material.
In test for several times, the specific monofilament of the present invention is through various processing, and it is in following description.In test for the first time, record does not have first sample value of activator, carries out irradiation afterwards, and in test for the second time, record does not have second sample value behind the irradiation of activator.In test for the third time, calculate second sample value with activator, carry out irradiation afterwards, in the 4th test, behind irradiation, calculate second sample value with activator, all these are listed in the table 1.Table 1 clearly illustrates that silk thread is not damaged by irradiation.
Other test has been described in Fig. 1～3, and wherein different polymeric amide samples is in the test that is hydrolyzed in autoclave in 240 hours time under 120 ℃.In this test, clearly illustrate that the drawing force that (Fig. 1～3) have an activator sample is more obvious than other samples declines behind irradiation.The minimizing of drawing force is the tolerance of chemical damage, for example causes by longitudinal slit or by being deformed into Polygons.It should be noted that hygral expansion does not take place to have diameter in the activator sample and change than not having in the activator sample still less.The splitting resistance of the concrete monofilament of the present invention significantly descends.Equally, gradient also is the tolerance to the monofilament infringement.Monofilament is littler in the gradient ratio prior art that cracking resistance changes.In this test, with 10 samples of all material produce.All samples were removed after 24 hours and are used to measure intensity.

Claims (15)

1. polyamide monofilament, be used in particular for common textiles, for example be used for paper making equipment, be characterised in that described monofilament comprises that ratio is the polymeric amide of 99.9wt%～90wt%, with ratio be the crosslinked bonding reinforcer of 0.1wt%～10wt%, be that polymeric amide is partial cross-linked at least.
2. monofilament as claimed in claim 1 is characterised in that described monofilament contains the crosslinked bonding reinforcer of 0.5wt%～5wt%.
3. as the monofilament of claim 1 or 2, be characterised in that described monofilament contains the crosslinked bonding reinforcer of 1wt%～3wt%.
4. as the monofilament of above-mentioned each claim, be characterised in that described crosslinked bonding reinforcer is TAIC (triallyl isocyanurate) or TAC.
5. as the monofilament of above-mentioned each claim, be characterised in that described monofilament crosses its entire cross section and carry out crosslinked.
6. as the monofilament of above-mentioned each claim, be characterised in that the amorphous domain of polymeric amide is crosslinked basically.
7. as the monofilament of above-mentioned each claim, be characterised in that described polymeric amide is PA6, PA6.6, PA6.10 or PA6.12.
8. common textiles, particularly leader silk or press felt for example are used for cellulosic fibre manufacturing or paper production, and wherein warp thread is made up of each monofilament of claim 1～7 of the present invention at least.
9. a production contains the method just like the common textiles of each monofilament of claim 1～7, extruded monofilament wherein, with back draft and weave, be characterised in that before extruding, polymeric amide is mixed with crosslinked bonding reinforcer, is before weaving process and/or afterwards, with electronics x ray irradiation x monofilament, by such method, polymeric amide is by partial cross-linked.
10. method as claimed in claim 9 is characterised in that fabric quilt irradiation wholly or in part.
11., be characterised in that with the β ray and carry out irradiation as the method for claim 9 or 10.
12., be characterised in that with 0.1～100kGy and carry out irradiation as each method of claim 9～11.
13., be characterised in that with 10～50kGy and carry out irradiation as each method of claim 9～12.
14., be characterised in that with 15～30kGy and carry out irradiation as each method of claim 8～13.
15. as the purposes of each method of claim 9～14, be used to produce common textiles, for example leader silk or press felt for example are used for cellulosic fibre manufacturing or paper production.
CNB028121791A 2001-06-21 2002-06-13 Monofilament of polyamide, flat textile product and method for producing same Expired - Fee Related CN1285619C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10131729.8 2001-06-21
DE10131729A DE10131729A1 (en) 2001-06-21 2001-06-21 Monofilament made of polyamide, textile fabric and method for producing such

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CN1516708A true CN1516708A (en) 2004-07-28
CN1285619C CN1285619C (en) 2006-11-22

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EP (1) EP1404721A4 (en)
JP (1) JP2004531657A (en)
KR (1) KR20040012948A (en)
CN (1) CN1285619C (en)
AU (1) AU2002318345B2 (en)
BR (1) BR0210511A (en)
CA (1) CA2450533A1 (en)
DE (1) DE10131729A1 (en)
MX (1) MXPA03011732A (en)
NO (1) NO20035709D0 (en)
NZ (1) NZ529998A (en)
RU (1) RU2003136274A (en)
TW (1) TWI243218B (en)
WO (1) WO2003000742A1 (en)
ZA (1) ZA200309429B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356191A (en) * 2009-03-18 2012-02-15 鲍姆胡特挤出有限责任公司 Polyethylene fiber, its use and process for its manufacture

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JPS5513742A (en) * 1978-07-18 1980-01-30 Teijin Ltd Aromatic polyamide film and its production
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JPS6042254A (en) * 1983-08-11 1985-03-06 Sumitomo Electric Ind Ltd Manufacture of optical fiber
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DE19600162A1 (en) * 1996-01-04 1997-07-10 Bayer Faser Gmbh Melt-spun, abrasion-resistant monofilaments
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356191A (en) * 2009-03-18 2012-02-15 鲍姆胡特挤出有限责任公司 Polyethylene fiber, its use and process for its manufacture

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MXPA03011732A (en) 2005-07-25
NZ529998A (en) 2005-05-27
CN1285619C (en) 2006-11-22
ZA200309429B (en) 2004-12-06
BR0210511A (en) 2004-10-05
JP2004531657A (en) 2004-10-14
CA2450533A1 (en) 2003-01-03
RU2003136274A (en) 2005-05-20
EP1404721A1 (en) 2004-04-07
WO2003000742A1 (en) 2003-01-03
EP1404721A4 (en) 2007-03-21
TWI243218B (en) 2005-11-11
DE10131729A1 (en) 2003-01-09
NO20035709D0 (en) 2003-12-19
AU2002318345B2 (en) 2007-05-31
KR20040012948A (en) 2004-02-11

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